#include<bits/stdc++.h>
using namespace std;
#define N 100005
int ct[N],n,res;
int main(){
    freopen("duel.in","r",stdin),freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=0,x;i<n;i++)cin>>x,ct[x]++,res=max(res,ct[x]);
    cout<<res;
    fclose(stdin),fclose(stdout);
    return 0;
}
